gold/reloc.cc

   1 // reloc.cc -- relocate input files for gold.
   2
   3 // Copyright 2006, 2007 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   5
   6 // This file is part of gold.
   7
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 3 of the License, or
  11 // (at your option) any later version.
  12
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the Free Software
  20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 // MA 02110-1301, USA.
  22
  23 #include "gold.h"
  24
  25 #include "workqueue.h"
  26 #include "object.h"
  27 #include "symtab.h"
  28 #include "output.h"
  29 #include "reloc.h"
  30
  31 namespace gold
  32 {
  33
  34 // Read_relocs methods.
  35
  36 // These tasks just read the relocation information from the file.
  37 // After reading it, the start another task to process the
  38 // information.  These tasks requires access to the file.
  39
  40 Task::Is_runnable_type
  41 Read_relocs::is_runnable(Workqueue*)
  42 {
  43   return this->object_->is_locked() ? IS_LOCKED : IS_RUNNABLE;
  44 }
  45
  46 // Lock the file.
  47
  48 Task_locker*
  49 Read_relocs::locks(Workqueue*)
  50 {
  51   return new Task_locker_obj<Object>(*this->object_);
  52 }
  53
  54 // Read the relocations and then start a Scan_relocs_task.
  55
  56 void
  57 Read_relocs::run(Workqueue* workqueue)
  58 {
  59   Read_relocs_data *rd = new Read_relocs_data;
  60   this->object_->read_relocs(rd);
  61   workqueue->queue_front(new Scan_relocs(this->options_, this->symtab_,
  62                                          this->layout_, this->object_, rd,
  63                                          this->symtab_lock_, this->blocker_));
  64 }
  65
  66 // Scan_relocs methods.
  67
  68 // These tasks scan the relocations read by Read_relocs and mark up
  69 // the symbol table to indicate which relocations are required.  We
  70 // use a lock on the symbol table to keep them from interfering with
  71 // each other.
  72
  73 Task::Is_runnable_type
  74 Scan_relocs::is_runnable(Workqueue*)
  75 {
  76   if (!this->symtab_lock_->is_writable() || this->object_->is_locked())
  77     return IS_LOCKED;
  78   return IS_RUNNABLE;
  79 }
  80
  81 // Return the locks we hold: one on the file, one on the symbol table
  82 // and one blocker.
  83
  84 class Scan_relocs::Scan_relocs_locker : public Task_locker
  85 {
  86  public:
  87   Scan_relocs_locker(Object* object, Task_token& symtab_lock, Task* task,
  88                      Task_token& blocker, Workqueue* workqueue)
  89     : objlock_(*object), symtab_locker_(symtab_lock, task),
  90       blocker_(blocker, workqueue)
  91   { }
  92
  93  private:
  94   Task_locker_obj<Object> objlock_;
  95   Task_locker_write symtab_locker_;
  96   Task_locker_block blocker_;
  97 };
  98
  99 Task_locker*
 100 Scan_relocs::locks(Workqueue* workqueue)
 101 {
 102   return new Scan_relocs_locker(this->object_, *this->symtab_lock_, this,
 103                                 *this->blocker_, workqueue);
 104 }
 105
 106 // Scan the relocs.
 107
 108 void
 109 Scan_relocs::run(Workqueue*)
 110 {
 111   this->object_->scan_relocs(this->options_, this->symtab_, this->layout_,
 112                              this->rd_);
 113   delete this->rd_;
 114   this->rd_ = NULL;
 115 }
 116
 117 // Relocate_task methods.
 118
 119 // These tasks are always runnable.
 120
 121 Task::Is_runnable_type
 122 Relocate_task::is_runnable(Workqueue*)
 123 {
 124   return IS_RUNNABLE;
 125 }
 126
 127 // We want to lock the file while we run.  We want to unblock
 128 // FINAL_BLOCKER when we are done.
 129
 130 class Relocate_task::Relocate_locker : public Task_locker
 131 {
 132  public:
 133   Relocate_locker(Task_token& token, Workqueue* workqueue,
 134                   Object* object)
 135     : blocker_(token, workqueue), objlock_(*object)
 136   { }
 137
 138  private:
 139   Task_locker_block blocker_;
 140   Task_locker_obj<Object> objlock_;
 141 };
 142
 143 Task_locker*
 144 Relocate_task::locks(Workqueue* workqueue)
 145 {
 146   return new Relocate_locker(*this->final_blocker_, workqueue,
 147                              this->object_);
 148 }
 149
 150 // Run the task.
 151
 152 void
 153 Relocate_task::run(Workqueue*)
 154 {
 155   this->object_->relocate(this->options_, this->symtab_, this->layout_,
 156                           this->of_);
 157 }
 158
 159 // Read the relocs and local symbols from the object file and store
 160 // the information in RD.
 161
 162 template<int size, bool big_endian>
 163 void
 164 Sized_relobj<size, big_endian>::do_read_relocs(Read_relocs_data* rd)
 165 {
 166   rd->relocs.clear();
 167
 168   unsigned int shnum = this->shnum();
 169   if (shnum == 0)
 170     return;
 171
 172   rd->relocs.reserve(shnum / 2);
 173
 174   const unsigned char *pshdrs = this->get_view(this->elf_file_.shoff(),
 175                                                shnum * This::shdr_size,
 176                                                true);
 177   // Skip the first, dummy, section.
 178   const unsigned char *ps = pshdrs + This::shdr_size;
 179   for (unsigned int i = 1; i < shnum; ++i, ps += This::shdr_size)
 180     {
 181       typename This::Shdr shdr(ps);
 182
 183       unsigned int sh_type = shdr.get_sh_type();
 184       if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA)
 185         continue;
 186
 187       unsigned int shndx = shdr.get_sh_info();
 188       if (shndx >= shnum)
 189         {
 190           fprintf(stderr, _("%s: %s: relocation section %u has bad info %u\n"),
 191                   program_name, this->name().c_str(), i, shndx);
 192           gold_exit(false);
 193         }
 194
 195       if (!this->is_section_included(shndx))
 196         continue;
 197
 198       // We are scanning relocations in order to fill out the GOT and
 199       // PLT sections.  Relocations for sections which are not
 200       // allocated (typically debugging sections) should not add new
 201       // GOT and PLT entries.  So we skip them.
 202       typename This::Shdr secshdr(pshdrs + shndx * This::shdr_size);
 203       if ((secshdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0)
 204         continue;
 205
 206       if (shdr.get_sh_link() != this->symtab_shndx_)
 207         {
 208           fprintf(stderr,
 209                   _("%s: %s: relocation section %u uses unexpected "
 210                     "symbol table %u\n"),
 211                   program_name, this->name().c_str(), i, shdr.get_sh_link());
 212           gold_exit(false);
 213         }
 214
 215       off_t sh_size = shdr.get_sh_size();
 216
 217       unsigned int reloc_size;
 218       if (sh_type == elfcpp::SHT_REL)
 219         reloc_size = elfcpp::Elf_sizes<size>::rel_size;
 220       else
 221         reloc_size = elfcpp::Elf_sizes<size>::rela_size;
 222       if (reloc_size != shdr.get_sh_entsize())
 223         {
 224           fprintf(stderr,
 225                   _("%s: %s: unexpected entsize for reloc section %u: "
 226                     "%lu != %u"),
 227                   program_name, this->name().c_str(), i,
 228                   static_cast<unsigned long>(shdr.get_sh_entsize()),
 229                   reloc_size);
 230           gold_exit(false);
 231         }
 232
 233       size_t reloc_count = sh_size / reloc_size;
 234       if (static_cast<off_t>(reloc_count * reloc_size) != sh_size)
 235         {
 236           fprintf(stderr, _("%s: %s: reloc section %u size %lu uneven"),
 237                   program_name, this->name().c_str(), i,
 238                   static_cast<unsigned long>(sh_size));
 239           gold_exit(false);
 240         }
 241
 242       rd->relocs.push_back(Section_relocs());
 243       Section_relocs& sr(rd->relocs.back());
 244       sr.reloc_shndx = i;
 245       sr.data_shndx = shndx;
 246       sr.contents = this->get_lasting_view(shdr.get_sh_offset(), sh_size,
 247                                            true);
 248       sr.sh_type = sh_type;
 249       sr.reloc_count = reloc_count;
 250     }
 251
 252   // Read the local symbols.
 253   gold_assert(this->symtab_shndx_ != -1U);
 254   if (this->symtab_shndx_ == 0 || this->local_symbol_count_ == 0)
 255     rd->local_symbols = NULL;
 256   else
 257     {
 258       typename This::Shdr symtabshdr(pshdrs
 259                                      + this->symtab_shndx_ * This::shdr_size);
 260       gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
 261       const int sym_size = This::sym_size;
 262       const unsigned int loccount = this->local_symbol_count_;
 263       gold_assert(loccount == symtabshdr.get_sh_info());
 264       off_t locsize = loccount * sym_size;
 265       rd->local_symbols = this->get_lasting_view(symtabshdr.get_sh_offset(),
 266                                                  locsize, true);
 267     }
 268 }
 269
 270 // Scan the relocs and adjust the symbol table.  This looks for
 271 // relocations which require GOT/PLT/COPY relocations.
 272
 273 template<int size, bool big_endian>
 274 void
 275 Sized_relobj<size, big_endian>::do_scan_relocs(const General_options& options,
 276                                                Symbol_table* symtab,
 277                                                Layout* layout,
 278                                                Read_relocs_data* rd)
 279 {
 280   Sized_target<size, big_endian>* target = this->sized_target();
 281
 282   const unsigned char* local_symbols;
 283   if (rd->local_symbols == NULL)
 284     local_symbols = NULL;
 285   else
 286     local_symbols = rd->local_symbols->data();
 287
 288   for (Read_relocs_data::Relocs_list::iterator p = rd->relocs.begin();
 289        p != rd->relocs.end();
 290        ++p)
 291     {
 292       target->scan_relocs(options, symtab, layout, this, p->data_shndx,
 293                           p->sh_type, p->contents->data(), p->reloc_count,
 294                           this->local_symbol_count_,
 295                           local_symbols,
 296                           this->symbols_);
 297       delete p->contents;
 298       p->contents = NULL;
 299     }
 300
 301   if (rd->local_symbols != NULL)
 302     {
 303       delete rd->local_symbols;
 304       rd->local_symbols = NULL;
 305     }
 306 }
 307
 308 // Relocate the input sections and write out the local symbols.
 309
 310 template<int size, bool big_endian>
 311 void
 312 Sized_relobj<size, big_endian>::do_relocate(const General_options& options,
 313                                             const Symbol_table* symtab,
 314                                             const Layout* layout,
 315                                             Output_file* of)
 316 {
 317   unsigned int shnum = this->shnum();
 318
 319   // Read the section headers.
 320   const unsigned char* pshdrs = this->get_view(this->elf_file_.shoff(),
 321                                                shnum * This::shdr_size,
 322                                                true);
 323
 324   Views views;
 325   views.resize(shnum);
 326
 327   // Make two passes over the sections.  The first one copies the
 328   // section data to the output file.  The second one applies
 329   // relocations.
 330
 331   this->write_sections(pshdrs, of, &views);
 332
 333   // Apply relocations.
 334
 335   this->relocate_sections(options, symtab, layout, pshdrs, &views);
 336
 337   // Write out the accumulated views.
 338   for (unsigned int i = 1; i < shnum; ++i)
 339     {
 340       if (views[i].view != NULL)
 341         of->write_output_view(views[i].offset, views[i].view_size,
 342                               views[i].view);
 343     }
 344
 345   // Write out the local symbols.
 346   this->write_local_symbols(of, layout->sympool());
 347 }
 348
 349 // Write section data to the output file.  PSHDRS points to the
 350 // section headers.  Record the views in *PVIEWS for use when
 351 // relocating.
 352
 353 template<int size, bool big_endian>
 354 void
 355 Sized_relobj<size, big_endian>::write_sections(const unsigned char* pshdrs,
 356                                                Output_file* of,
 357                                                Views* pviews)
 358 {
 359   unsigned int shnum = this->shnum();
 360   std::vector<Map_to_output>& map_sections(this->map_to_output());
 361
 362   const unsigned char* p = pshdrs + This::shdr_size;
 363   for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
 364     {
 365       View_size* pvs = &(*pviews)[i];
 366
 367       pvs->view = NULL;
 368
 369       if (map_sections[i].offset == -1)
 370         continue;
 371
 372       const Output_section* os = map_sections[i].output_section;
 373       if (os == NULL)
 374         continue;
 375
 376       typename This::Shdr shdr(p);
 377
 378       if (shdr.get_sh_type() == elfcpp::SHT_NOBITS)
 379         continue;
 380
 381       off_t start = os->offset() + map_sections[i].offset;
 382       off_t sh_size = shdr.get_sh_size();
 383
 384       if (sh_size == 0)
 385         continue;
 386
 387       gold_assert(map_sections[i].offset >= 0
 388                   && map_sections[i].offset + sh_size <= os->data_size());
 389
 390       unsigned char* view = of->get_output_view(start, sh_size);
 391       this->read(shdr.get_sh_offset(), sh_size, view);
 392
 393       pvs->view = view;
 394       pvs->address = os->address() + map_sections[i].offset;
 395       pvs->offset = start;
 396       pvs->view_size = sh_size;
 397     }
 398 }
 399
 400 // Relocate section data.  VIEWS points to the section data as views
 401 // in the output file.
 402
 403 template<int size, bool big_endian>
 404 void
 405 Sized_relobj<size, big_endian>::relocate_sections(
 406     const General_options& options,
 407     const Symbol_table* symtab,
 408     const Layout* layout,
 409     const unsigned char* pshdrs,
 410     Views* pviews)
 411 {
 412   unsigned int shnum = this->shnum();
 413   Sized_target<size, big_endian>* target = this->sized_target();
 414
 415   Relocate_info<size, big_endian> relinfo;
 416   relinfo.options = &options;
 417   relinfo.symtab = symtab;
 418   relinfo.layout = layout;
 419   relinfo.object = this;
 420   relinfo.local_symbol_count = this->local_symbol_count_;
 421   relinfo.local_values = &this->local_values_;
 422   relinfo.symbols = this->symbols_;
 423
 424   const unsigned char* p = pshdrs + This::shdr_size;
 425   for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
 426     {
 427       typename This::Shdr shdr(p);
 428
 429       unsigned int sh_type = shdr.get_sh_type();
 430       if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA)
 431         continue;
 432
 433       unsigned int index = shdr.get_sh_info();
 434       if (index >= this->shnum())
 435         {
 436           fprintf(stderr, _("%s: %s: relocation section %u has bad info %u\n"),
 437                   program_name, this->name().c_str(), i, index);
 438           gold_exit(false);
 439         }
 440
 441       if (!this->is_section_included(index))
 442         {
 443           // This relocation section is against a section which we
 444           // discarded.
 445           continue;
 446         }
 447
 448       gold_assert((*pviews)[index].view != NULL);
 449
 450       if (shdr.get_sh_link() != this->symtab_shndx_)
 451         {
 452           fprintf(stderr,
 453                   _("%s: %s: relocation section %u uses unexpected "
 454                     "symbol table %u\n"),
 455                   program_name, this->name().c_str(), i, shdr.get_sh_link());
 456           gold_exit(false);
 457         }
 458
 459       off_t sh_size = shdr.get_sh_size();
 460       const unsigned char* prelocs = this->get_view(shdr.get_sh_offset(),
 461                                                     sh_size, false);
 462
 463       unsigned int reloc_size;
 464       if (sh_type == elfcpp::SHT_REL)
 465         reloc_size = elfcpp::Elf_sizes<size>::rel_size;
 466       else
 467         reloc_size = elfcpp::Elf_sizes<size>::rela_size;
 468
 469       if (reloc_size != shdr.get_sh_entsize())
 470         {
 471           fprintf(stderr,
 472                   _("%s: %s: unexpected entsize for reloc section %u: "
 473                     "%lu != %u"),
 474                   program_name, this->name().c_str(), i,
 475                   static_cast<unsigned long>(shdr.get_sh_entsize()),
 476                   reloc_size);
 477           gold_exit(false);
 478         }
 479
 480       size_t reloc_count = sh_size / reloc_size;
 481       if (static_cast<off_t>(reloc_count * reloc_size) != sh_size)
 482         {
 483           fprintf(stderr, _("%s: %s: reloc section %u size %lu uneven"),
 484                   program_name, this->name().c_str(), i,
 485                   static_cast<unsigned long>(sh_size));
 486           gold_exit(false);
 487         }
 488
 489       relinfo.reloc_shndx = i;
 490       relinfo.data_shndx = index;
 491       target->relocate_section(&relinfo,
 492                                sh_type,
 493                                prelocs,
 494                                reloc_count,
 495                                (*pviews)[index].view,
 496                                (*pviews)[index].address,
 497                                (*pviews)[index].view_size);
 498     }
 499 }
 500
 501 // Copy_relocs::Copy_reloc_entry methods.
 502
 503 // Return whether we should emit this reloc.  We should emit it if the
 504 // symbol is still defined in a dynamic object.  If we should not emit
 505 // it, we clear it, to save ourselves the test next time.
 506
 507 template<int size, bool big_endian>
 508 bool
 509 Copy_relocs<size, big_endian>::Copy_reloc_entry::should_emit()
 510 {
 511   if (this->sym_ == NULL)
 512     return false;
 513   if (this->sym_->is_from_dynobj())
 514     return true;
 515   this->sym_ = NULL;
 516   return false;
 517 }
 518
 519 // Emit a reloc into a SHT_REL section.
 520
 521 template<int size, bool big_endian>
 522 void
 523 Copy_relocs<size, big_endian>::Copy_reloc_entry::emit(
 524     Output_data_reloc<elfcpp::SHT_REL, true, size, big_endian>* reloc_data)
 525 {
 526   this->sym_->set_needs_dynsym_entry();
 527   reloc_data->add_global(this->sym_, this->reloc_type_, this->relobj_,
 528                          this->shndx_, this->address_);
 529 }
 530
 531 // Emit a reloc into a SHT_RELA section.
 532
 533 template<int size, bool big_endian>
 534 void
 535 Copy_relocs<size, big_endian>::Copy_reloc_entry::emit(
 536     Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian>* reloc_data)
 537 {
 538   this->sym_->set_needs_dynsym_entry();
 539   reloc_data->add_global(this->sym_, this->reloc_type_, this->relobj_,
 540                          this->shndx_, this->address_, this->addend_);
 541 }
 542
 543 // Copy_relocs methods.
 544
 545 // Return whether we need a COPY reloc for a relocation against GSYM.
 546 // The relocation is being applied to section SHNDX in OBJECT.
 547
 548 template<int size, bool big_endian>
 549 bool
 550 Copy_relocs<size, big_endian>::need_copy_reloc(
 551     const General_options*,
 552     Relobj* object,
 553     unsigned int shndx,
 554     Sized_symbol<size>* sym)
 555 {
 556   // FIXME: Handle -z nocopyrelocs.
 557
 558   if (sym->symsize() == 0)
 559     return false;
 560
 561   // If this is a readonly section, then we need a COPY reloc.
 562   // Otherwise we can use a dynamic reloc.
 563   if ((object->section_flags(shndx) & elfcpp::SHF_WRITE) == 0)
 564     return true;
 565
 566   return false;
 567 }
 568
 569 // Save a Rel reloc.
 570
 571 template<int size, bool big_endian>
 572 void
 573 Copy_relocs<size, big_endian>::save(
 574     Symbol* sym,
 575     Relobj* relobj,
 576     unsigned int shndx,
 577     const elfcpp::Rel<size, big_endian>& rel)
 578 {
 579   unsigned int reloc_type = elfcpp::elf_r_type<size>(rel.get_r_info());
 580   this->entries_.push_back(Copy_reloc_entry(sym, reloc_type, relobj, shndx,
 581                                             rel.get_r_offset(), 0));
 582 }
 583
 584 // Save a Rela reloc.
 585
 586 template<int size, bool big_endian>
 587 void
 588 Copy_relocs<size, big_endian>::save(
 589     Symbol* sym,
 590     Relobj* relobj,
 591     unsigned int shndx,
 592     const elfcpp::Rela<size, big_endian>& rela)
 593 {
 594   unsigned int reloc_type = elfcpp::elf_r_type<size>(rela.get_r_info());
 595   this->entries_.push_back(Copy_reloc_entry(sym, reloc_type, relobj, shndx,
 596                                             rela.get_r_offset(),
 597                                             rela.get_r_addend()));
 598 }
 599
 600 // Return whether there are any relocs to emit.  We don't want to emit
 601 // a reloc if the symbol is no longer defined in a dynamic object.
 602
 603 template<int size, bool big_endian>
 604 bool
 605 Copy_relocs<size, big_endian>::any_to_emit()
 606 {
 607   for (typename Copy_reloc_entries::iterator p = this->entries_.begin();
 608        p != this->entries_.end();
 609        ++p)
 610     {
 611       if (p->should_emit())
 612         return true;
 613     }
 614   return false;
 615 }
 616
 617 // Emit relocs.
 618
 619 template<int size, bool big_endian>
 620 template<int sh_type>
 621 void
 622 Copy_relocs<size, big_endian>::emit(
 623     Output_data_reloc<sh_type, true, size, big_endian>* reloc_data)
 624 {
 625   for (typename Copy_reloc_entries::iterator p = this->entries_.begin();
 626        p != this->entries_.end();
 627        ++p)
 628     {
 629       if (p->should_emit())
 630         p->emit(reloc_data);
 631     }
 632 }
 633
 634 // Instantiate the templates we need.  We could use the configure
 635 // script to restrict this to only the ones for implemented targets.
 636
 637 #ifdef HAVE_TARGET_32_LITTLE
 638 template
 639 void
 640 Sized_relobj<32, false>::do_read_relocs(Read_relocs_data* rd);
 641 #endif
 642
 643 #ifdef HAVE_TARGET_32_BIG
 644 template
 645 void
 646 Sized_relobj<32, true>::do_read_relocs(Read_relocs_data* rd);
 647 #endif
 648
 649 #ifdef HAVE_TARGET_64_LITTLE
 650 template
 651 void
 652 Sized_relobj<64, false>::do_read_relocs(Read_relocs_data* rd);
 653 #endif
 654
 655 #ifdef HAVE_TARGET_64_BIG
 656 template
 657 void
 658 Sized_relobj<64, true>::do_read_relocs(Read_relocs_data* rd);
 659 #endif
 660
 661 #ifdef HAVE_TARGET_32_LITTLE
 662 template
 663 void
 664 Sized_relobj<32, false>::do_scan_relocs(const General_options& options,
 665                                         Symbol_table* symtab,
 666                                         Layout* layout,
 667                                         Read_relocs_data* rd);
 668 #endif
 669
 670 #ifdef HAVE_TARGET_32_BIG
 671 template
 672 void
 673 Sized_relobj<32, true>::do_scan_relocs(const General_options& options,
 674                                        Symbol_table* symtab,
 675                                        Layout* layout,
 676                                        Read_relocs_data* rd);
 677 #endif
 678
 679 #ifdef HAVE_TARGET_64_LITTLE
 680 template
 681 void
 682 Sized_relobj<64, false>::do_scan_relocs(const General_options& options,
 683                                         Symbol_table* symtab,
 684                                         Layout* layout,
 685                                         Read_relocs_data* rd);
 686 #endif
 687
 688 #ifdef HAVE_TARGET_64_BIG
 689 template
 690 void
 691 Sized_relobj<64, true>::do_scan_relocs(const General_options& options,
 692                                        Symbol_table* symtab,
 693                                        Layout* layout,
 694                                        Read_relocs_data* rd);
 695 #endif
 696
 697 #ifdef HAVE_TARGET_32_LITTLE
 698 template
 699 void
 700 Sized_relobj<32, false>::do_relocate(const General_options& options,
 701                                      const Symbol_table* symtab,
 702                                      const Layout* layout,
 703                                      Output_file* of);
 704 #endif
 705
 706 #ifdef HAVE_TARGET_32_BIG
 707 template
 708 void
 709 Sized_relobj<32, true>::do_relocate(const General_options& options,
 710                                     const Symbol_table* symtab,
 711                                     const Layout* layout,
 712                                     Output_file* of);
 713 #endif
 714
 715 #ifdef HAVE_TARGET_64_LITTLE
 716 template
 717 void
 718 Sized_relobj<64, false>::do_relocate(const General_options& options,
 719                                      const Symbol_table* symtab,
 720                                      const Layout* layout,
 721                                      Output_file* of);
 722 #endif
 723
 724 #ifdef HAVE_TARGET_64_BIG
 725 template
 726 void
 727 Sized_relobj<64, true>::do_relocate(const General_options& options,
 728                                     const Symbol_table* symtab,
 729                                     const Layout* layout,
 730                                     Output_file* of);
 731 #endif
 732
 733 #ifdef HAVE_TARGET_32_LITTLE
 734 template
 735 class Copy_relocs<32, false>;
 736 #endif
 737
 738 #ifdef HAVE_TARGET_32_BIG
 739 template
 740 class Copy_relocs<32, true>;
 741 #endif
 742
 743 #ifdef HAVE_TARGET_64_LITTLE
 744 template
 745 class Copy_relocs<64, false>;
 746 #endif
 747
 748 #ifdef HAVE_TARGET_64_BIG
 749 template
 750 class Copy_relocs<64, true>;
 751 #endif
 752
 753 #ifdef HAVE_TARGET_32_LITTLE
 754 template
 755 void
 756 Copy_relocs<32, false>::emit<elfcpp::SHT_REL>(
 757     Output_data_reloc<elfcpp::SHT_REL, true, 32, false>*);
 758 #endif
 759
 760 #ifdef HAVE_TARGET_32_BIG
 761 template
 762 void
 763 Copy_relocs<32, true>::emit<elfcpp::SHT_REL>(
 764     Output_data_reloc<elfcpp::SHT_REL, true, 32, true>*);
 765 #endif
 766
 767 #ifdef HAVE_TARGET_64_LITTLE
 768 template
 769 void
 770 Copy_relocs<64, false>::emit<elfcpp::SHT_REL>(
 771     Output_data_reloc<elfcpp::SHT_REL, true, 64, false>*);
 772 #endif
 773
 774 #ifdef HAVE_TARGET_64_BIG
 775 template
 776 void
 777 Copy_relocs<64, true>::emit<elfcpp::SHT_REL>(
 778     Output_data_reloc<elfcpp::SHT_REL, true, 64, true>*);
 779 #endif
 780
 781 #ifdef HAVE_TARGET_32_LITTLE
 782 template
 783 void
 784 Copy_relocs<32, false>::emit<elfcpp::SHT_RELA>(
 785     Output_data_reloc<elfcpp::SHT_RELA , true, 32, false>*);
 786 #endif
 787
 788 #ifdef HAVE_TARGET_32_BIG
 789 template
 790 void
 791 Copy_relocs<32, true>::emit<elfcpp::SHT_RELA>(
 792     Output_data_reloc<elfcpp::SHT_RELA, true, 32, true>*);
 793 #endif
 794
 795 #ifdef HAVE_TARGET_64_LITTLE
 796 template
 797 void
 798 Copy_relocs<64, false>::emit<elfcpp::SHT_RELA>(
 799     Output_data_reloc<elfcpp::SHT_RELA, true, 64, false>*);
 800 #endif
 801
 802 #ifdef HAVE_TARGET_64_BIG
 803 template
 804 void
 805 Copy_relocs<64, true>::emit<elfcpp::SHT_RELA>(
 806     Output_data_reloc<elfcpp::SHT_RELA, true, 64, true>*);
 807 #endif
 808
 809 } // End namespace gold.